1 files changed, 125 insertions, 0 deletions
diff --git a/plugins/jetpack/modules/shortcodes/archiveorg-book.php b/plugins/jetpack/modules/shortcodes/archiveorg-book.php
new file mode 100644
index 00000000..4a70b057
--- /dev/null
+++ b/plugins/jetpack/modules/shortcodes/archiveorg-book.php
@@ -0,0 +1,125 @@
+<?php
+/**
+ * Archive.org Shortcode
+ *
+ * Usage:
+ * [archiveorg-book goodytwoshoes00newyiala]
+ * [archiveorg-book http://www.archive.org/stream/goodytwoshoes00newyiala]
+ * [archiveorg id=goodytwoshoes00newyiala width=480 height=430]
+
+ *<iframe src='https://www.archive.org/stream/goodytwoshoes00newyiala?ui=embed#mode/1up' width='480px' height='430px' frameborder='0' ></iframe>
+ */
+
+/**
+ * Get ID of requested archive.org book embed.
+ *
+ * @since 4.5.0
+ *
+ * @param $atts
+ *
+ * @return int|string
+ */
+function jetpack_shortcode_get_archiveorg_book_id( $atts ) {
+	if ( isset( $atts[0] ) ) {
+		$atts[0] = trim( $atts[0] , '=' );
+		if ( preg_match( '#archive.org/stream/(.+)/?$#i', $atts[0], $match ) ) {
+			$id = $match[1];
+		} else {
+			$id = $atts[0];
+		}
+		return $id;
+	}
+	return 0;
+}
+
+/**
+ * Convert an archive.org book shortcode into an embed code.
+ *
+ * @since 4.5.0
+ *
+ * @param array $atts An array of shortcode attributes.
+ * @return string The embed code for the Archive.org book
+ */
+function jetpack_archiveorg_book_shortcode( $atts ) {
+	global $content_width;
+
+	if ( isset( $atts[0] ) && empty( $atts['id'] ) ) {
+		$atts['id'] = jetpack_shortcode_get_archiveorg_book_id( $atts );
+	}
+
+	$atts = shortcode_atts( array(
+		'id'       => '',
+		'width'    => 480,
+		'height'   => 430,
+	), $atts );
+
+	if ( ! $atts['id'] ) {
+		return '<!-- error: missing archive.org book ID -->';
+	}
+
+	$id = $atts['id'];
+
+	if ( ! $atts['width'] ) {
+		$width = absint( $content_width );
+	} else {
+		$width = intval( $atts['width'] );
+	}
+
+	if ( ! $atts['height'] ) {
+		$height = round( ( $width / 640 ) * 360 );
+	} else {
+		$height = intval( $atts['height'] );
+	}
+
+	$url = esc_url( set_url_scheme( "http://archive.org/stream/{$id}?ui=embed#mode/1up" ) );
+
+	$html = "<div class='embed-archiveorg-book' style='text-align:center;'><iframe src='$url' width='$width' height='$height' style='border:0;' webkitallowfullscreen='true' mozallowfullscreen='true' allowfullscreen></iframe></div>";
+	return $html;
+}
+
+add_shortcode( 'archiveorg-book', 'jetpack_archiveorg_book_shortcode' );
+
+/**
+ * Compose shortcode from archive.org book iframe.
+ *
+ * @since 4.5.0
+ *
+ * @param string $content
+ *
+ * @return mixed
+ */
+function jetpack_archiveorg_book_embed_to_shortcode( $content ) {
+	if ( ! is_string( $content ) || false === stripos( $content, 'archive.org/stream/' ) ) {
+		return $content;
+	}
+
+	$regexp = '!<iframe\s+src=[\'"](http|https)://(www.archive|archive)\.org/stream/([^\'"]+)[\'"]((?:\s+\w+(=[\'"][^\'"]*[\'"])?)*)\s></iframe>!i';
+
+	if ( ! preg_match_all( $regexp, $content, $matches, PREG_SET_ORDER ) ) {
+		return $content;
+	}
+
+	foreach ( $matches as $match ) {
+		$url = explode( '?', $match[3] );
+		$id = $url[0];
+
+		$params = $match[4];
+
+		$params = wp_kses_hair( $params, array( 'http' ) );
+
+		$width = isset( $params['width'] ) ? absint( $params['width']['value'] ) : 0;
+		$height = isset( $params['height'] ) ? absint( $params['height']['value'] ) : 0;
+
+		$wh = '';
+		if ( $width && $height ) {
+			$wh = ' width=' . $width . ' height=' . $height;
+		}
+
+		$shortcode = '[archiveorg-book ' . $id . $wh . ']';
+		$content = str_replace( $match[0], $shortcode, $content );
+	}
+
+	return $content;
+}
+
+add_filter( 'pre_kses', 'jetpack_archiveorg_book_embed_to_shortcode' );
+\ No newline at end of file